[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100634147":3},{"organization":4,"armGroups":7,"interventions":19,"overallOfficials":12,"centralContacts":25,"locations":32,"responsibleParty":48,"collaborators":12,"id":50,"slug":12,"hasResults":51,"nctId":52,"briefTitle":53,"officialTitle":54,"acronym":55,"eligibilityCriteria":56,"healthyVolunteers":51,"sex":57,"minAge":58,"maxAge":12,"enrollmentInfo":59,"targetDuration":12,"studyType":62,"phases":63,"briefSummary":65,"conditions":66,"keywords":12,"overallStatus":69,"whyStopped":12,"lastUpdateSubmitDate":70,"lastUpdatePostDateStruct":71,"startDateStruct":74,"completionDateStruct":76,"leadSponsor":78,"locationsCount":79},{"fullName":5,"class":6},"University Health Network, Toronto","OTHER",[8,13],{"label":9,"type":10,"description":11,"interventionNames":12},"Non-Experimental Intervention: Observation","NO_INTERVENTION","Participant will not receive intervention after treatment with ADT. Per routine care, participant will undergo observation for testosterone recovery",null,{"label":14,"type":15,"description":16,"interventionNames":17},"Experimental Intervention: Tamoxifen","EXPERIMENTAL","Participant will take 2 tamoxifen pills by mouth, every day, for a total of 40 mg each day. The duration of tamoxifen treatment will depend on the duration of the participant's previous ADT treatment. If the participant received ADT treatment for 6 months, they will receive daily Tamoxifen for 3 months. If the participant received ADT treatment for 18-36 months, they will receive daily Tamoxifen for 6 months.",[18],"Drug: Tamoxifen",[20],{"type":21,"name":22,"description":23,"armGroupLabels":24,"otherNames":12},"DRUG","Tamoxifen","Selective estrogen receptor modulator, oral tablet",[14],[26],{"name":27,"role":28,"phone":29,"phoneExt":30,"email":31},"Alejandro Berlin, MD","CONTACT","416-946-4501","5813","alejandro.berlin@uhn.ca",[33],{"facility":34,"status":12,"city":35,"state":36,"zip":37,"country":38,"countryCode":39,"cosmosGeoPoint":40,"geoPoint":45,"contacts":46},"University Health Network - Princess Margaret Cancer Center","Toronto","Ontario","M5G 2M9","Canada","CA",{"type":41,"coordinates":42},"Point",[43,44],-79.39864,43.70643,{"lat":44,"lon":43},[47],{"name":27,"role":28,"phone":29,"phoneExt":30,"email":31},{"type":49,"investigatorFullName":12,"investigatorTitle":12,"investigatorAffiliation":12,"oldNameTitle":12,"oldOrganization":12},"SPONSOR","100634147",false,"NCT07535905","Clinical Trial to Observe the Effects of Tamoxifen on Testosterone Recovery in Medically Castrated Prostate Cancer Patients","Phase II Controlled Clinical Trial to Test Efficacy and Observe Longitudinal Effects of Tamoxifen for Testosterone Recovery in Medically Castrated Prostate Cancer Patients","REVIVE","Inclusion Criteria:\n\n* At least 18 years of age;\n* Ability to understand the purposes and risks of the trial and has signed a written informed consent form. Have a diagnosis of prostate cancer;\n* Patient received ADT for a duration of either 6 or 18-36 months as part of the curative intent treatment. Curative intent prostate cancer patients who completed ADT and have had no further ADT for the length of the last ADT injection depot formulation (e.g., if the last ADT injection depot formulation is for 3 months, the patient must have no ADT for 3 months after last injection)\n* Have effectively castrated testosterone (\\\u003C 1.7 nmol\u002FL \\[50 ng\u002FdL\\]) within 6 weeks of enrollment;\n* ECOG Performance status 0-2\n\nExclusion Criteria:\n\n* Harbouring certain CYP2D6 alleles (i.e. CYP2D6\\*4) or from the chronic use of a CYP2D6 inhibitor(s);\n* History of blood clots (venous thromboembolism or pulmonary embolism);\n* History of stroke or transient ischemic attack (TIA);\n* Reduced liver function within last 120 days prior to enrolment, defined as follows:\n\n  1. Total Bilirubin: 1.5 \\> upper limit of normal (ULN) (For Gilbert's syndrome, if total bilirubin is \\\u003C1.5 x ULN, measure direct and indirect bilirubin. If direct bilirubin is greater than 1.5 x ULN, participant is ineligible;\n  2. AST(SGOT) and ALT(SGPT): \\> 2.5x ULN;\n  3. Or other liver disease as deemed ineligible by the investigator\n* Baseline QT\u002FQTc \\> 500ms;\n* Active therapy with selective serotonin reuptake inhibitor (SSRI) antidepressants (e.g. paroxetine, a known CYP2D6 inhibitor);\n* Active therapy with coumarin-type anticoagulants;\n* Active therapy with cytotoxic agents;\n* Active therapy with aromatase inhibitors;\n* Other invasive malignancy within the last 5 years, other than squamous or basal cell carcinoma of the skin;\n* Treatment with a non-approved or experimental drug during the 3 months before informed consent;\n* Patients known to have one of the following hereditary illnesses; galactose- intolerance, Lapp lactase deficiency or glucose-galactose malabsorption;\n* Any other significant concomitant disease or condition that could interfere with the conduct of the study, or that would, in the opinion of the investigator, pose an unacceptable risk to the participant in this trial;","MALE","18 Years",{"count":60,"type":61},96,"ESTIMATED","INTERVENTIONAL",[64],"PHASE2","Androgen deprivation therapy (ADT) is a cornerstone therapy in the treatment of curable prostate cancer (PCa). However, ADT often leads to a protracted testosterone recovery period in most men or absence of complete recovery in 10-25% of cases. The hypogonadal state has significant psychosocial and physical side effects. Therefore, limiting ADT effect's duration beyond the prescribed castration period is very compelling to patients and providers alike.\n\nTamoxifen, a well-established selective estrogen receptor modulator, offers a novel and cost-effective approach to accelerate testosterone recovery in men with secondary hypogonadism. This project addresses a critical gap in global cancer care by evaluating Tamoxifen as a viable solution for reducing the burden of delayed testosterone recovery and its associated side effects, particularly in resource-limited settings.",[67,68],"Hypogonadism","Prostate Cancer","NOT_YET_RECRUITING","2026-06-09",{"date":72,"type":73},"2026-06-10","ACTUAL",{"date":75,"type":61},"2026-07",{"date":77,"type":61},"2030-10",{"name":5,"class":6},1]